Reduce docker container size by ~100MB

Dockerfile

@@ -1,4 +1,4 @@
-FROM node:20-alpine
+FROM node:20-alpine AS base
 
 WORKDIR /checker
 
@@ -6,12 +6,17 @@ COPY package.json ./
 COPY pnpm-lock.yaml ./
 COPY src ./src
 
-LABEL org.opencontainers.image.source=https://git.pfy.ch/pfych/chapter-tracker
-LABEL org.opencontainers.image.description="Ping a webhook when a new MangaDex chapter is released"
-LABEL org.opencontainers.image.licenses=MIT
-
 RUN npm install -g pnpm
 RUN pnpm install
 RUN pnpm run compile
 
-CMD ["node", "./.out/build.js"]
+FROM node:20-alpine AS app
+
+LABEL org.opencontainers.image.source=https://git.pfy.ch/pfych/chapter-tracker
+LABEL org.opencontainers.image.description="Ping a webhook when a new MangaDex chapter is released"
+LABEL org.opencontainers.image.licenses=MIT
+
+WORKDIR /checker
+COPY --from=base /checker/.out/build.js build.js
+
+CMD ["node", "build.js"]

package.json

@@ -16,15 +16,17 @@
   "license": "MIT",
   "packageManager": "pnpm@10.7.1",
   "dependencies": {
+    "axios": "1.8.4",
+    "lodash-es": "4.17.21"
+  },
+  "devDependencies": {
     "@types/lodash-es": "4.17.12",
     "@types/node": "22.14.1",
-    "axios": "1.8.4",
     "esbuild": "0.25.2",
     "@typescript-eslint/eslint-plugin": "7.2.0",
     "@typescript-eslint/parser": "7.2.0",
     "eslint": "8.57.0",
     "eslint-config-prettier": "9.1.0",
-    "lodash-es": "4.17.21",
     "prettier": "3.5.3",
     "typescript": "5.8.3"
   },

pnpm-lock.yaml

@@ -8,6 +8,13 @@ importers:
 
   .:
     dependencies:
+      axios:
+        specifier: 1.8.4
+        version: 1.8.4
+      lodash-es:
+        specifier: 4.17.21
+        version: 4.17.21
+    devDependencies:
       '@types/lodash-es':
         specifier: 4.17.12
         version: 4.17.12
@@ -20,9 +27,6 @@ importers:
       '@typescript-eslint/parser':
         specifier: 7.2.0
         version: 7.2.0(eslint@8.57.0)(typescript@5.8.3)
-      axios:
-        specifier: 1.8.4
-        version: 1.8.4
       esbuild:
         specifier: 0.25.2
         version: 0.25.2
@@ -32,9 +36,6 @@ importers:
       eslint-config-prettier:
         specifier: 9.1.0
         version: 9.1.0(eslint@8.57.0)
-      lodash-es:
-        specifier: 4.17.21
-        version: 4.17.21
       prettier:
         specifier: 3.5.3
         version: 3.5.3